The Colotti gearbox internals of that Rob Walker Minisprint above were specially produced by Alf Francis my ex-neighbour (see below).....little did i know as a child at the time! His famous book is still a brilliant read by the way, if you can find a copy for a reasonable price.
In the early 1960's my father bought a new built bungalow in Charlwood a small village in Surrey near what became Gatwick Airport and our next door neighbour was the wife of famous Grand Prix mechanic Alf Francis who ran Rob Walker's successful team from their premises in Dorking. He was often away and his wife rarely seemed to see him but I remember he usually came home driving exotic Italian cars or occasionally a racing car transporter was parked in our small private cul-de-sac overnight! If only I had taken some photos at the time and asked him about his life at work......In 1957 he authored his biography Alf Francis: Racing Mechanic with journalist Peter Lewis. Alf Francis was Stirling Moss's chief mechanic in the 1950/60s, and told his story of racing on the circuit with Moss and others to Peter Lewis. Vignette line drawings in the text were by Sylvia Francis, Alf's wife, who also designed the books original 1st Edition dust jacket. His book deals with every facet of the racing mechanic's life - the hard work, the long hectic journeys in the transporters across Europe, the frustrations, excitements, disappointments and depicts motor racing as it really was from the inside.
"Alf Francis (born Alfons Kowaleski or Alphons Kowalewski on June 18, 1918 in Danzig in West Prussia, currently Poland, died on June 28, 1983 in Oklahoma City, United States) was a motor racing mechanic and racing car constructor.
Francis was born in Danzig but left during World War II, first for Portugal, then by sea to Liverpool in the UK, where he joined the Polish 1st Armoured Division. After World War II, he changed his nationality to British, and his name to Alf Francis. He became a racing mechanic for Stirling Moss and the Chief Mechanic at Rob Walker Racing Team.
At Rob Walker Racing Team, he maintained many Grand Prix cars including Cooper-Climax and Lotus 18, and helped developing the team's own Formula 1 car called Walker Special. Working with transmission engineer and designer Valerio Colotti, he became a partner of Colotti-Francis, and moved to Italy.
In 1963 he returned to England where he was involved in the unsuccessful Derrington-Francis Formula One project. He subsequently immigrated to the US, where he built cars for lower racing formulae and worked with various classic car restorers and collectors. He died in Oklohoma in 1983, it was said at the age of 65, but those who knew Alf from his early days would put him at nearer 70.."